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DISASSEMBLY
19
21
17
16
13
ITEM NO
DESCRIPTION
13
RETAINING RING
16
BEARING ROLLER
17
THRUST SPACER
19
PLANET GEAR
21
RETAINING RING
22
PLANET CARRIER
66
THRUST SPACER
1. Remove the retaining ring (13) from one of the planet
carrier posts.
2 The loose rollers will scatter if dropped so take precau-
tions to ensure they are captured during this step of
disassembly. Use a gear puller to pull the planet gear
(19) off of the planet carrier post. If a gear puller is
not available, two pry-bars positioned 180° apart can
be used to pry the gear off of the planet carrier post,
but care must be taken to ensure the pry-bar does not
contact and damage the planet carrier post.
3. Push the roller bearings out of the gear (19) and re-
move the retaining ring (21) and two thrust washers
(17). Remove the thrust spacer (66).
4. Repeat the above steps for the remaining two planet
gears.
5. Thoroughly clean all parts and inspect for damage and
wear. The bearing rollers and bearing race should ex-
hibit no irregularities. If the rollers or race show any
signs of spalling, corrosion, discoloration, material dis-
placement or abnormal wear, the bearing rollers should
be replaced. The thrust washer contact areas should
be free from any surface irregularities that may cause
abrasion or friction. The gears and planet pins should
be inspected for abnormal wear or pitting.
FINAL PLANET CARRIER SERVICE
22
66
16
17
QTY
5
10
10
5
5
1
1
ASSEMBLY
The loose roller bearings can be diffi cult to keep in place
during assembly.
This procedure attempts to simplify
this.
1. Clean and inspect parts as described in step 4 of the
disassembly procedure.
2. Ensure thrust spacer (66) is installed in the planet car-
rier (22) before installing the gears on the planet carrier
posts.
3. Place planet gear (15) on clean workbench. Install re-
taining ring (21) in the center groove of planet gear and
place one of the thrust washers (17) on the retaining
ring.
4. Set the bearing inner race near the planet gear and
coat bearing rollers (9) with enough grease to hold the
bearing rollers in place on the inner race. A rubber
band can be used to hold the bearing rollers on the in-
ner race if needed; slide it off once the rollers enter the
gear. Slide the bearing into the planet gear. Hold the
rollers in place and turn the planet gear over. Set re-
maining thrust washer (17) on top of retaining ring (21)
and repeat this assembly step for the second bearing
set for this planet gear.
5. Apply a light coat of grease the planet carrier bearing
post and then slide the planet gear onto the planet car-
rier post.
6. Install the snap-ring (13) to secure the planet gear to
the planet carrier.
7. Repeat procedure for remaining planet gears.
33
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